• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
CommentaryFederal Trade Commission (FTC)

Former FTC chair urges agency not to tarnish a bipartisan legacy from Reagan to Obama: ‘We can’t ignore the last 40 years of antitrust based on protecting consumers’

By
Timothy J. Muris
Timothy J. Muris
Down Arrow Button Icon
By
Timothy J. Muris
Timothy J. Muris
Down Arrow Button Icon
April 3, 2023, 12:17 PM ET
Lina Khan, chair of the Federal Trade Commission (FTC), speaks at the Department of Justice in Washington, DC on Mar. 27.
Lina Khan, chair of the Federal Trade Commission (FTC), speaks at the Department of Justice in Washington, DC on Mar. 27.Al Drago - Bloomberg - Getty Images

Whether philosophers pursuing knowledge or statesmen seeking counsel for their troubles, many in ancient times traveled to the Oracle at Delphi, who besides her famous maxim “know thyself” also proclaimed “know what you have learned.” With U.S. antitrust law now in turmoil and searching for new wisdom, its own savants will soon issue their own Delphic edict: new merger guidelines.

As Bruce Kobayashi and I show in a new study for the Competitive Enterprise Institute, far from following the advice of the ancient Oracle, the new guidelines risk ignoring lessons about sound antitrust policy that led to a bipartisan consensus for enforcing the antitrust laws.

President Biden recently decried modern antitrust law and policy as a 40-year “experiment failed.” To correct these “mistakes,” the antitrust agencies plan to replace the 2010 Horizontal Merger Guidelines and the 2020 Vertical Merger Guidelines (already withdrawn by the FTC) with a new enforcement approach. Although the precise nature–including the operational details–of the new guidelines remains unknown at the time of writing, the agencies have not only made their disdain for the last four decades known but also expressed their affinity for the pre-1980 merger law that modern guidelines long ago repudiated.

This pre-1980s paradigm was characterized by both a desire to protect competitors and a myopic focus on market concentration as measured by market share. Multiple court decisions before the last 40 years implied that a merger lowering costs and prices would nevertheless be condemned if it offended the stated goal of decentralization. This populism supposedly drove the simple concentration doctrine that condemned mergers between competitors with combined market shares as low as 5%.

In 1968, merger guidelines followed this faulty thinking. With a nod to the then-popular structuralist economics, in “highly concentrated” markets (defined as markets where the four largest firms had a combined share of at least 75%), mergers between firms each with at least a 4% market share would ordinarily be challenged. With a nod to the populists, the 1968 guidelines held that even in markets that were not “highly concentrated,” mergers between firms each with a 5% market share would ordinarily be challenged.

It was not long before the structuralist economics and populism underlying the 1968 guidelines were exposed as baseless. Critics of structuralism demonstrated that this approach did not discern between competitive and anticompetitive outcomes. Put simply, firms with successful products, not just anti-competitive monopolists, often have high market shares! Indeed, economists also demonstrated empirically that smaller competitors in concentrated markets had no higher profits than smaller firms in unconcentrated industries, providing strong evidence that the large firms in concentrated industries were more profitable because they were more efficient–not because they were acting anticompetitively.

Populism too was rejected–and by no less authorities than the Supreme Court and other of the nation’s leading jurists. Doubling down on its earlier wisdom that the antitrust laws are designed “to protect competition, not competitors,” the courts made clear that antitrust law prohibits business practices only when they harm consumers.

As Judge Richard Posner, himself a leading antitrust expert, explained, “it was prudent for the [FTC], rather than resting on the very strict merger decisions of the 1960s, to inquire into the probability of harm to consumers.” Four years later, then-Judge Clarence Thomas, in an opinion joined by then-judge Ruth Bader Ginsburg before both judges joined the Supreme Court, quoted Judge Posner approvingly in rejecting a merger challenge by the Department of Justice.

Consumer-focused antitrust thus became bipartisan. In the 1980s, guidelines from the Reagan administration repudiated populism by clarifying that only mergers resulting in harm to consumers were unlawful. Revised guidelines issued by the Bush and Clinton administrations heralded the end of structuralist economics by not only adopting the consumer welfare standard of the Reagan Guidelines but also formalizing the framework for evaluating the likely effects of a merger, including allowing merging parties to offer various defenses.

Moreover, the Obama administration’s 2010 guidelines further deemphasized the use of structural screens and raised the market share thresholds for mergers to be found presumptively anticompetitive far above those of the Reagan guidelines. And, just as the critics of yesteryear failed to account for size driven by efficiency, so do critics of today’s bipartisan consensus when they fail to account for the many procompetitive deals that might have been rejected under the old approach.

Beyond mergers, the FTC’s leaders find “monopoly” rife in the economy. To quote Larry Summers, Secretary of Treasury under President Clinton, whose warnings of impending inflation the Biden Administration ignored, this big is bad attitude is “presumptively problematic.” He fears a new era of “populist antitrust policy that will make the US economy, more inflationary, and less resilient.” Leading companies, including in the technology industries, have been built from the ground up in the United States rather than Europe or China largely because the American legal environment is stable, predictable, and uniquely hospitable to vigorous, paradigm-shattering competition by businesses, large and small.  

Even successful companies can violate the antitrust law, of course.  The rules of the last 40 years lead to the breakup of AT&T and the prosecution of Microsoft. Those same rules are now being adjudicated involving Facebook and Google in cases filed at the end of the 40 years the Biden administration condemned.

In another maxim featured at the entrance of the Temple of Apollo, the Delphic Oracle cautioned, “give a pledge and trouble is at hand.” Indeed, trouble is exactly what will result if the antitrust revolutionaries double down and reinstate the old failed merger policies. Those policies were rejected for sound reasons, often based on hard-won experience, as the case law they produced was incoherent, illogical, and most importantly, anti-consumer. Unfortunately, the current antitrust leadership seems intent on forcing the antitrust world and consumers to relearn those painful lessons.

Timothy J. Muris is a George Mason University Foundation Professor of Law and a former chairman of the Federal Trade Commission. He is co-author of the study “Turning Back the Clock: Structural Presumptions in Merger Analyses and Revised Merger Guidelines,” published by the Competitive Enterprise Institute.

The opinions expressed in Fortune.com commentary pieces are solely the views of their authors and do not necessarily reflect the opinions and beliefs of Fortune.

More must-read commentary published by Fortune:

  • A recession in 2023 is now inevitable. Layoffs in tech and finance will spread to other sectors
  • The return to the office once seemed inevitable. A new study shows companies are already reversing course
  • How the IMF naively parroted Putin’s fake statistics–and botched its economic forecast for Russia
  • Mozilla wants to do for A.I. what it did for web browsers with Firefox
Subscribe to Well Adjusted, our newsletter full of simple strategies to work smarter and live better, from the Fortune Well team. Sign up today.
About the Author
By Timothy J. Muris
See full bioRight Arrow Button Icon

Latest in Commentary

Julian Braithwaite is the Director General of the International Alliance for Responsible Drinking
CommentaryProductivity
Gen Z is drinking 20% less than Millennials. Productivity is rising. Coincidence? Not quite
By Julian BraithwaiteDecember 13, 2025
16 hours ago
carbon
Commentaryclimate change
Banking on carbon markets 2.0: why financial institutions should engage with carbon credits
By Usha Rao-MonariDecember 13, 2025
17 hours ago
Dr. Javier Cárdenas is the director of the Rockefeller Neuroscience Institute NeuroPerformance Innovation Center.
Commentaryconcussions
Fists, not football: There is no concussion protocol for domestic violence survivors
By Javier CárdenasDecember 12, 2025
2 days ago
Gary Locke is the former U.S. ambassador to China, U.S. secretary of commerce, and governor of Washington.
CommentaryChina
China is winning the biotech race. Patent reform is how we catch up
By Gary LockeDecember 12, 2025
2 days ago
millennial
CommentaryConsumer Spending
Meet the 2025 holiday white whale: the millennial dad spending $500+ per kid
By Phillip GoerickeDecember 12, 2025
2 days ago
Sarandos
CommentaryAntitrust
Netflix, Warner, Paramount and antitrust: Entertainment megadeal’s outcome must follow the evidence, not politics or fear of integration
By Satya MararDecember 12, 2025
2 days ago

Most Popular

placeholder alt text
Success
Apple cofounder Ronald Wayne sold his 10% stake for $800 in 1976—today it’d be worth up to $400 billion
By Preston ForeDecember 12, 2025
2 days ago
placeholder alt text
Economy
Tariffs are taxes and they were used to finance the federal government until the 1913 income tax. A top economist breaks it down
By Kent JonesDecember 12, 2025
2 days ago
placeholder alt text
Success
40% of Stanford undergrads receive disability accommodations—but it’s become a college-wide phenomenon as Gen Z try to succeed in the current climate
By Preston ForeDecember 12, 2025
2 days ago
placeholder alt text
Economy
The Fed just ‘Trump-proofed’ itself with a unanimous move to preempt a potential leadership shake-up
By Jason MaDecember 12, 2025
1 day ago
placeholder alt text
Success
Apple CEO Tim Cook out-earns the average American’s salary in just 7 hours—to put that into context, he could buy a new $439,000 home in just 2 days
By Emma BurleighDecember 12, 2025
2 days ago
placeholder alt text
Economy
For the first time since Trump’s tariff rollout, import tax revenue has fallen, threatening his lofty plans to slash the $38 trillion national debt
By Sasha RogelbergDecember 12, 2025
1 day ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.